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更新日期：2019-08-03
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By use this App, You can decide anything.
For example, Today's dinner, lunch, which team gets first use of the ball in many sports.
Coin flipping, coin tossing, or heads or tails is the practice of throwing a coin in the air to choose between two alternatives, sometimes to resolve a dispute between two parties.
It is a form of sortition which inherently has only two possible and equally likely outcomes.
During a coin toss, the coin is thrown into the air such that it rotates edge-over-edge several times.
Either beforehand or when the coin is in the air, an interested party calls "heads" or "tails", indicating which side of the coin that party is choosing.
The other party is assigned the opposite side.
Depending on custom, the coin may be caught, caught and inverted, or allowed to land on the ground.
When the coin comes to rest, the toss is complete and the party who called or was assigned the face-up side is declared the winner.
It is theoretically possible for a coin to land on its edge, either by landing up against an object (such as a shoe) or by getting stuck in the ground.
Angular momentum typically prevents most coins from landing on their edges unsupported if flipped.
Such cases in which a coin does land on its edge are exceptionally rare and in most cases the coin is simply re-flipped.
The coin may be any type as long as it has two distinct sides; it need not be a circulating coin as such.
Larger coins tend to be more popular than smaller ones. Most high-profile coin tosses use custom-made ceremonial medallions.
